diff --git a/SECURITY.md b/SECURITY.md
index f5dbcb48..a64c5af9 100644
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -32,7 +32,7 @@ key pair generation. Other operations or attack vectors may also be vulnerable t
 For a sophisticated attacker observing just one operation with a private key will be sufficient
 to completely reconstruct the private key.
 
-Fixes for side-channel vulerabilities will not be developed.
+Fixes for side-channel vulnerabilities will not be developed.
 
 Please also note that any Pure-python cryptographic library will be vulnerable to the same
 side-channel attacks. This is because Python does not provide side-channel secure primitives
diff --git a/docs/source/glossary.rst b/docs/source/glossary.rst
index 4aebb532..7b8e5b10 100644
--- a/docs/source/glossary.rst
+++ b/docs/source/glossary.rst
@@ -79,7 +79,7 @@ Glossary
        ``str`` (only on python2), ``bytes``, ``bytearray``, ``array.array``
        and ``memoryview`` of those objects.
        Please note that ``array.array`` serialisation (converting it to byte
-       string) is endianess dependant! Signature computed over ``array.array``
+       string) is endianness dependent! Signature computed over ``array.array``
        of integers on a big-endian system will not be verified on a
        little-endian system and vice-versa.
 
diff --git a/src/ecdsa/curves.py b/src/ecdsa/curves.py
index 38e3a758..1aa2e982 100644
--- a/src/ecdsa/curves.py
+++ b/src/ecdsa/curves.py
@@ -570,7 +570,7 @@ def curve_by_name(name):
     """Select a curve based on its name.
 
     Returns a :py:class:`~ecdsa.curves.Curve` object with a ``name`` name.
-    Note that ``name`` is case-sensitve.
+    Note that ``name`` is case-sensitive.
 
     :param str name: Name of the curve to return, like ``NIST256p`` or
         ``prime256v1``